Added script to automate releases

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

scripts/release.sh

+#!/bin/sh
+VKCV_BRANCH="$(git status | awk 'NR == 1 { print $3 }')"
+
+if [ "$VKCV_BRANCH" != "develop" ]; then
+	echo "WARNING: Please switch to origin/develop branch for preparing the next release!"
+	exit
+fi
+
+VKCV_VERSION="$(cat include/vkcv/Core.hpp | grep "#define VKCV_FRAMEWORK_VERSION" | awk 'NR == 1 { $1=""; $2=""; print }' | sed -e 's/[^0-9 ]//g' -- | awk '{print $1"."$2"."$3}')"
+
+if [ $(git tag | grep "$VKCV_VERSION" | wc -l) -gt 0 ]; then
+	echo "WARNING: Please adjust the version of the framework before uploading a release! (Duplicate version: $VKCV_VERSION)"
+	exit
+fi
+
+vim CHANGELOG.md
+git add CHANGELOG.md
+
+git commit -S -s -m "==========  VkCV-$VKCV_VERSION  =========="
+git push
+
+git checkout master
+git merge develop
+
+git tag -a "$VKCV_VERSION" -m "VkCV-$VKCV_VERSION release"
+git push
+git push --tags